CN116355503A - Anticorrosive paint for earthing tank and preparation method thereof - Google Patents
Anticorrosive paint for earthing tank and preparation method thereof Download PDFInfo
- Publication number
- CN116355503A CN116355503A CN202310158037.6A CN202310158037A CN116355503A CN 116355503 A CN116355503 A CN 116355503A CN 202310158037 A CN202310158037 A CN 202310158037A CN 116355503 A CN116355503 A CN 116355503A
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- Prior art keywords
- parts
- modified
- phenolic epoxy
- component
- paint
- Prior art date
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- 239000003973 paint Substances 0.000 title claims abstract description 82
- 238000002360 preparation method Methods 0.000 title abstract description 21
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 claims abstract description 91
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 claims abstract description 91
- 239000004721 Polyphenylene oxide Substances 0.000 claims abstract description 89
- 239000003822 epoxy resin Substances 0.000 claims abstract description 89
- 229920000647 polyepoxide Polymers 0.000 claims abstract description 89
- 229920000570 polyether Polymers 0.000 claims abstract description 89
- 238000002156 mixing Methods 0.000 claims abstract description 66
- -1 monocarboxylic acid glycidyl ester Chemical class 0.000 claims abstract description 64
- 229910021389 graphene Inorganic materials 0.000 claims abstract description 56
- 238000000576 coating method Methods 0.000 claims abstract description 51
- 239000011248 coating agent Substances 0.000 claims abstract description 50
- 239000004593 Epoxy Substances 0.000 claims abstract description 37
- 239000003795 chemical substances by application Substances 0.000 claims abstract description 33
- 239000013530 defoamer Substances 0.000 claims abstract description 27
- 239000004952 Polyamide Substances 0.000 claims abstract description 21
- 229920002647 polyamide Polymers 0.000 claims abstract description 21
- 239000002318 adhesion promoter Substances 0.000 claims abstract description 20
- RSWGJHLUYNHPMX-UHFFFAOYSA-N Abietic-Saeure Natural products C12CCC(C(C)C)=CC2=CCC2C1(C)CCCC2(C)C(O)=O RSWGJHLUYNHPMX-UHFFFAOYSA-N 0.000 claims abstract description 19
- KHPCPRHQVVSZAH-HUOMCSJISA-N Rosin Natural products O(C/C=C/c1ccccc1)[C@H]1[C@H](O)[C@@H](O)[C@@H](O)[C@@H](CO)O1 KHPCPRHQVVSZAH-HUOMCSJISA-N 0.000 claims abstract description 19
- 238000005260 corrosion Methods 0.000 claims abstract description 19
- 229920005989 resin Polymers 0.000 claims abstract description 19
- 239000011347 resin Substances 0.000 claims abstract description 19
- KHPCPRHQVVSZAH-UHFFFAOYSA-N trans-cinnamyl beta-D-glucopyranoside Natural products OC1C(O)C(O)C(CO)OC1OCC=CC1=CC=CC=C1 KHPCPRHQVVSZAH-UHFFFAOYSA-N 0.000 claims abstract description 19
- KXGFMDJXCMQABM-UHFFFAOYSA-N 2-methoxy-6-methylphenol Chemical class [CH]OC1=CC=CC([CH])=C1O KXGFMDJXCMQABM-UHFFFAOYSA-N 0.000 claims abstract description 18
- QGZKDVFQNNGYKY-UHFFFAOYSA-O Ammonium Chemical compound [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 18
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 claims abstract description 18
- 235000014113 dietary fatty acids Nutrition 0.000 claims abstract description 18
- 239000000194 fatty acid Substances 0.000 claims abstract description 18
- 229930195729 fatty acid Natural products 0.000 claims abstract description 18
- 150000004665 fatty acids Chemical class 0.000 claims abstract description 18
- 229910021485 fumed silica Inorganic materials 0.000 claims abstract description 18
- 239000002689 soil Substances 0.000 claims abstract description 9
- 239000002270 dispersing agent Substances 0.000 claims abstract description 7
- 238000009736 wetting Methods 0.000 claims abstract description 7
- 238000003756 stirring Methods 0.000 claims description 70
- 239000000203 mixture Substances 0.000 claims description 52
- 238000005303 weighing Methods 0.000 claims description 52
- 238000010438 heat treatment Methods 0.000 claims description 43
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 40
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 claims description 40
- 239000000126 substance Substances 0.000 claims description 38
- NWVVVBRKAWDGAB-UHFFFAOYSA-N p-methoxyphenol Chemical compound COC1=CC=C(O)C=C1 NWVVVBRKAWDGAB-UHFFFAOYSA-N 0.000 claims description 37
- 238000001723 curing Methods 0.000 claims description 29
- 239000004695 Polyether sulfone Substances 0.000 claims description 28
- 229920006393 polyether sulfone Polymers 0.000 claims description 28
- 238000001816 cooling Methods 0.000 claims description 27
- SMZOUWXMTYCWNB-UHFFFAOYSA-N 2-(2-methoxy-5-methylphenyl)ethanamine Chemical compound COC1=CC=C(C)C=C1CCN SMZOUWXMTYCWNB-UHFFFAOYSA-N 0.000 claims description 26
- NIXOWILDQLNWCW-UHFFFAOYSA-N 2-Propenoic acid Natural products OC(=O)C=C NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 claims description 26
- RZVINYQDSSQUKO-UHFFFAOYSA-N 2-phenoxyethyl prop-2-enoate Chemical compound C=CC(=O)OCCOC1=CC=CC=C1 RZVINYQDSSQUKO-UHFFFAOYSA-N 0.000 claims description 26
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 claims description 26
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 20
- WGCNASOHLSPBMP-UHFFFAOYSA-N hydroxyacetaldehyde Natural products OCC=O WGCNASOHLSPBMP-UHFFFAOYSA-N 0.000 claims description 20
- 238000000034 method Methods 0.000 claims description 19
- 239000002994 raw material Substances 0.000 claims description 17
- 238000006243 chemical reaction Methods 0.000 claims description 15
- 238000002715 modification method Methods 0.000 claims description 15
- HTDJPCNNEPUOOQ-UHFFFAOYSA-N hexamethylcyclotrisiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O1 HTDJPCNNEPUOOQ-UHFFFAOYSA-N 0.000 claims description 14
- BYDRTKVGBRTTIT-UHFFFAOYSA-N 2-methylprop-2-en-1-ol Chemical compound CC(=C)CO BYDRTKVGBRTTIT-UHFFFAOYSA-N 0.000 claims description 13
- UKLDJPRMSDWDSL-UHFFFAOYSA-L [dibutyl(dodecanoyloxy)stannyl] dodecanoate Chemical compound CCCCCCCCCCCC(=O)O[Sn](CCCC)(CCCC)OC(=O)CCCCCCCCCCC UKLDJPRMSDWDSL-UHFFFAOYSA-L 0.000 claims description 13
- 150000004982 aromatic amines Chemical class 0.000 claims description 13
- 239000012975 dibutyltin dilaurate Substances 0.000 claims description 13
- 238000000227 grinding Methods 0.000 claims description 13
- 238000012545 processing Methods 0.000 claims description 13
- 150000001868 cobalt Chemical class 0.000 claims description 11
- OYPRJOBELJOOCE-UHFFFAOYSA-N Calcium Chemical compound [Ca] OYPRJOBELJOOCE-UHFFFAOYSA-N 0.000 claims description 6
- 229910052791 calcium Inorganic materials 0.000 claims description 6
- 239000011575 calcium Substances 0.000 claims description 6
- 239000004014 plasticizer Substances 0.000 claims description 6
- 238000007873 sieving Methods 0.000 claims description 6
- ONIBWKKTOPOVIA-UHFFFAOYSA-N Proline Natural products OC(=O)C1CCCN1 ONIBWKKTOPOVIA-UHFFFAOYSA-N 0.000 claims description 4
- 239000006087 Silane Coupling Agent Substances 0.000 claims description 4
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 claims description 4
- CBTVGIZVANVGBH-UHFFFAOYSA-N aminomethyl propanol Chemical compound CC(C)(N)CO CBTVGIZVANVGBH-UHFFFAOYSA-N 0.000 claims description 4
- 239000003054 catalyst Substances 0.000 claims description 4
- FPAFDBFIGPHWGO-UHFFFAOYSA-N dioxosilane;oxomagnesium;hydrate Chemical compound O.[Mg]=O.[Mg]=O.[Mg]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O.O=[Si]=O FPAFDBFIGPHWGO-UHFFFAOYSA-N 0.000 claims description 4
- 239000012779 reinforcing material Substances 0.000 claims description 4
- KSBAEPSJVUENNK-UHFFFAOYSA-L tin(ii) 2-ethylhexanoate Chemical compound [Sn+2].CCCCC(CC)C([O-])=O.CCCCC(CC)C([O-])=O KSBAEPSJVUENNK-UHFFFAOYSA-L 0.000 claims description 4
- XSTXAVWGXDQKEL-UHFFFAOYSA-N Trichloroethylene Chemical compound ClC=C(Cl)Cl XSTXAVWGXDQKEL-UHFFFAOYSA-N 0.000 claims description 3
- ACIAHEMYLLBZOI-ZZXKWVIFSA-N Unsaturated alcohol Chemical compound CC\C(CO)=C/C ACIAHEMYLLBZOI-ZZXKWVIFSA-N 0.000 claims description 3
- CQQXCSFSYHAZOO-UHFFFAOYSA-L [acetyloxy(dioctyl)stannyl] acetate Chemical compound CCCCCCCC[Sn](OC(C)=O)(OC(C)=O)CCCCCCCC CQQXCSFSYHAZOO-UHFFFAOYSA-L 0.000 claims description 3
- 238000013006 addition curing Methods 0.000 claims description 3
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 claims description 3
- 229920000768 polyamine Polymers 0.000 claims description 3
- AHDSRXYHVZECER-UHFFFAOYSA-N 2,4,6-tris[(dimethylamino)methyl]phenol Chemical compound CN(C)CC1=CC(CN(C)C)=C(O)C(CN(C)C)=C1 AHDSRXYHVZECER-UHFFFAOYSA-N 0.000 claims description 2
- JLTDJTHDQAWBAV-UHFFFAOYSA-N N,N-dimethylaniline Chemical compound CN(C)C1=CC=CC=C1 JLTDJTHDQAWBAV-UHFFFAOYSA-N 0.000 claims description 2
- 239000013522 chelant Substances 0.000 claims description 2
- HMMGMWAXVFQUOA-UHFFFAOYSA-N octamethylcyclotetrasiloxane Chemical compound C[Si]1(C)O[Si](C)(C)O[Si](C)(C)O[Si](C)(C)O1 HMMGMWAXVFQUOA-UHFFFAOYSA-N 0.000 claims description 2
- CPJRRXSHAYUTGL-UHFFFAOYSA-N isopentenyl alcohol Chemical compound CC(=C)CCO CPJRRXSHAYUTGL-UHFFFAOYSA-N 0.000 claims 2
- 239000000463 material Substances 0.000 claims 1
- 230000007797 corrosion Effects 0.000 abstract description 6
- 230000004888 barrier function Effects 0.000 abstract description 3
- 238000005536 corrosion prevention Methods 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 19
- 239000006185 dispersion Substances 0.000 description 14
- 238000003860 storage Methods 0.000 description 11
- 229920006334 epoxy coating Polymers 0.000 description 10
- 239000010410 layer Substances 0.000 description 8
- 238000012986 modification Methods 0.000 description 5
- 230000004048 modification Effects 0.000 description 5
- 230000008569 process Effects 0.000 description 4
- ZVFDTKUVRCTHQE-UHFFFAOYSA-N Diisodecyl phthalate Chemical compound CC(C)CCCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCCC(C)C ZVFDTKUVRCTHQE-UHFFFAOYSA-N 0.000 description 3
- 239000011247 coating layer Substances 0.000 description 3
- QVDTXNVYSHVCGW-ONEGZZNKSA-N isopentenol Chemical compound CC(C)\C=C\O QVDTXNVYSHVCGW-ONEGZZNKSA-N 0.000 description 3
- 230000001681 protective effect Effects 0.000 description 3
- RTZKZFJDLAIYFH-UHFFFAOYSA-N Diethyl ether Chemical compound CCOCC RTZKZFJDLAIYFH-UHFFFAOYSA-N 0.000 description 2
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 239000004843 novolac epoxy resin Substances 0.000 description 2
- RZXMPPFPUUCRFN-UHFFFAOYSA-N para-methylaniline Natural products CC1=CC=C(N)C=C1 RZXMPPFPUUCRFN-UHFFFAOYSA-N 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 1
- 229910000831 Steel Inorganic materials 0.000 description 1
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000032683 aging Effects 0.000 description 1
- 239000002518 antifoaming agent Substances 0.000 description 1
- 239000010426 asphalt Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000010779 crude oil Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000018109 developmental process Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000011068 loading method Methods 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 238000011056 performance test Methods 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 239000004526 silane-modified polyether Substances 0.000 description 1
- 239000000243 solution Substances 0.000 description 1
- 239000007858 starting material Substances 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 239000011701 zinc Substances 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D163/00—Coating compositions based on epoxy resins; Coating compositions based on derivatives of epoxy resins
- C09D163/04—Epoxynovolacs
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D5/00—Coating compositions, e.g. paints, varnishes or lacquers, characterised by their physical nature or the effects produced; Filling pastes
- C09D5/08—Anti-corrosive paints
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/60—Additives non-macromolecular
- C09D7/61—Additives non-macromolecular inorganic
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/65—Additives macromolecular
-
- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
- C09D7/00—Features of coating compositions, not provided for in group C09D5/00; Processes for incorporating ingredients in coating compositions
- C09D7/40—Additives
- C09D7/70—Additives characterised by shape, e.g. fibres, flakes or microspheres
Landscapes
- Chemical & Material Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Wood Science & Technology (AREA)
- Organic Chemistry (AREA)
- Inorganic Chemistry (AREA)
- Paints Or Removers (AREA)
Abstract
The application discloses an anti-corrosion coating for a soil covering tank and a preparation method thereof, and relates to the technical field of soil covering tank corrosion prevention. The anti-corrosion paint of the earthing tank comprises a bottom layer, a middle layer and an outer layer, wherein the bottom layer, the middle layer and the outer layer are formed by mixing graphene phenolic epoxy paint and a curing agent, and the weight ratio of the graphene phenolic epoxy paint to the curing agent is 3:1; the graphene phenolic epoxy paint comprises a component A and a component B in a ratio of 100: (30-40) by weight ratio; the component A comprises the following components: phenolic epoxy resin, modified phenolic epoxy resin F-44, toughening resin VL-1, rosin modified phenolic resin, isomeric monocarboxylic acid glycidyl ester, nano fumed silica, BYK-111 modified fatty acid ammonium, defoamer and adhesion promoter; the component B comprises: phenolic amide, amidoamine, C30 modified alicyclic amine, an accelerator, graphene, modified polyether, a wetting dispersant and polyamide wax; the coating has good barrier property, is effectively corrosion-resistant, and prolongs the service life of the earthing tank.
Description
Technical Field
The application relates to an anti-corrosion coating for a soil covering tank and a preparation method thereof, and belongs to the technical field of soil covering tank corrosion prevention.
Background
Along with the sustainable development of the economy in China, the industrial level is continuously improved, and the large-sized storage tank has been widely applied to various industries due to the advantages of low cost, large capacity and the like. Among them, the earthing steel storage tank is the most common tank body in large-scale storage tank, because of its advantages such as high, safe, long service life of concealment, is widely used in the storage of crude oil and finished oil.
The design of the earthing storage tank is more complicated than that of an overground spherical tank, and a plurality of factors of the face of the tank body after the tank body is subjected to earthing treatment are considered, so that the corrosion protection of the tank body in soil is particularly realized. The earthing type storage tank generally adopts measures such as external coating protection, cathode protection and the like, so that the corrosion risk of the storage tank is reduced to the greatest extent possible. Considering that the environment is similar to that of a buried pipeline, the adopted anti-corrosion coating mainly comprises: commercial epoxy asphalt, epoxy powder, epoxy zinc rich, epoxy micaceous iron oxide, polyurethane, and the like.
For traditional coating, the coating cannot be thick coated, when the thickness of the coating is thinner, the protective performance provided under the buried environment is limited, the traditional coating is high in VOC, not environment-friendly and has many pinhole defects after coating, so that the coating is easy to produce water seepage failure in the service process, the service life of the buried storage tank is influenced, the corrosion prevention requirement is difficult to meet, and the earthing storage tank is easy to collide or deform in the loading, transferring and transporting process, so that the coating is required to have certain mechanical performance.
Disclosure of Invention
The invention aims to provide an anti-corrosion paint for a soil covering tank and a preparation method thereof, and a coating coated by the paint has good waterproof property, chemical resistance and certain mechanical property.
In order to achieve the above purpose, the present application is implemented by the following technical solutions:
the anti-corrosion paint for the earthing tank is characterized by comprising a bottom layer, a middle layer and an outer layer, wherein the bottom layer, the middle layer and the outer layer are formed by mixing graphene phenolic epoxy paint and a curing agent, and the weight ratio of the graphene phenolic epoxy paint to the curing agent is 3:1;
the graphene phenolic epoxy paint comprises a component A and a component B in a ratio of 100: (30-40) by weight ratio;
the component A comprises the following components in parts by weight: 0.8-1.2 parts of phenolic epoxy resin, 0.4-0.7 part of modified phenolic epoxy resin F-44, 0.3-0.5 part of toughening resin VL-1, 0.3-0.6 part of rosin modified phenolic resin, 0.2-0.5 part of heterogeneous monocarboxylic acid glycidyl ester, 0.3-0.8 part of nano fumed silica, 0.04-0.1 part of BYK-111 modified fatty acid ammonium, 0.02-0.06 part of defoamer and 0.04-0.08 part of adhesion promoter;
the component B comprises the following components in parts by weight: 0.8-1.2 parts of phenolic amide, 0.2-0.4 part of amidoamine, 0.2-0.4 part of C30 type modified alicyclic amine, 0.1-0.25 part of accelerator, 0.01-0.3 part of graphene, 0.02-0.06 part of modified polyether, 0.03-0.07 part of wetting dispersant and 0.05-0.1 part of polyamide wax.
Further, the method for modifying the phenolic epoxy resin F-44 comprises the following steps:
precisely weighing 42-45 parts of phenolic epoxy resin F-44, 14-16 parts of acrylic acid, 15-17 parts of polyethersulfone, 0.02-0.06 part of p-hydroxyanisole, 17-20 parts of trimethylolpropane triacrylate and 17-20 parts of 2-phenoxyethyl acrylate;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 100-130 ℃, fully stirring for 70-90min, reducing the temperature to 60-75 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 50-60min, cooling the obtained mixture, and grinding to obtain the modified phenolic epoxy resin F-44.
Further, the modification method of the modified polyether comprises the following steps:
weighing 15-30 parts of cyclic siloxane, 45-60 parts of polyether and 0.8-2 parts of catalyst, uniformly mixing and stirring, heating to 50-70 ℃, dropwise adding 0.8-1.2 parts of unsaturated alcohol, and preserving heat for 50-70min to obtain a substance A;
and step two, weighing 40-60 parts of reinforcing material and 15-30 parts of plasticizer, placing in a reaction kettle, heating to 80-160 ℃, mixing and stirring for 30-50min, cooling to 30-50 ℃, adding the substance A in the step one, mixing and stirring for 10-25min, and obtaining the modified polyether.
Further, the cyclic siloxane is any one or two of hexamethyl cyclotrisiloxane and octamethyl cyclotrisiloxane;
the catalyst is one or more of dibutyl tin dilaurate, dioctyl tin diacetate, chelate tin, stannous octoate and diorganotin bis (beta-diketone ester);
the reinforcing material is one or more of heavy calcium, talcum powder and calcium carbonate;
the plasticizer is any one or more of polyether glycol, polyether triol, 4-dipalmitoyl proline and diisononyl phthalate.
Further, the curing agent is any one or more of a water-soluble modified epoxy polyamine addition curing agent, an aromatic amine curing agent and a polyamide curing agent.
Further, the defoamer is any one or more of DF9010F defoamer, defom2700 defoamer, AMP95 defoamer and BYK-A530 defoamer.
Further, the adhesion promoter is a silane coupling agent or a DP-10 adhesion promoter.
Further, the accelerator is any one or more of 2,4, 6-tris (dimethylaminomethyl) phenol, N-dimethylaniline, N-dimethyl-p-methylaniline and cobalt salt accelerator.
Further, the wetting dispersant is one or two of alkoxy ammonium salt BYK-180 and BYK-190.
According to another aspect of the present application, there is provided a method for preparing an anticorrosive paint for a soil covered tank according to any one of the above, comprising the steps of:
(1) Weighing 0.8-1.2 parts by weight of phenolic epoxy resin, 0.4-0.7 part by weight of modified phenolic epoxy resin F-44, 0.3-0.5 part by weight of toughening resin VL-1 and 0.3-0.6 part by weight of rosin modified phenolic resin, placing into a ball mill, processing for 5.5-6.5 hours at 900-1100rpm to obtain a mixture, weighing 0.2-0.5 part by weight of heterogeneous monocarboxylic acid glycidyl ester, 0.3-0.8 part by weight of nano fumed silica, 0.04-0.1 part by weight of BYK-111 modified fatty acid ammonium, 0.02-0.06 part by weight of defoaming agent and 0.04-0.08 part by weight of adhesion promoter, placing the mixture and the obtained mixture into a dispersion tank, dispersing for 20-30min at 1000-1300rpm, and sieving by a 50-mesh sieve to obtain the component A;
(2) According to the weight portion, 0.8 to 1.2 portions of phenolic amide, 0.2 to 0.4 portion of amidoamine, 0.2 to 0.4 portion of C30 type modified alicyclic amine, 0.1 to 0.25 portion of accelerator, 0.01 to 0.3 portion of graphene, 0.02 to 0.06 portion of modified polyether, 0.03 to 0.07 portion of wetting dispersant and 0.05 to 0.1 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1000 to 1300rpm, and are sieved by a 50-mesh screen to prepare the component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100: mixing (30-40) by weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy paint obtained in the step (3) with a curing agent according to the weight ratio of 3:1 to obtain the paint required by the coating.
The beneficial effects of the invention include, but are not limited to:
1. the anticorrosive paint for the earthing tank provided by the invention is used for modifying the phenolic epoxy resin F-44, so that the fracture toughness of the paint is effectively improved and the mechanical property of the paint is increased under the condition that the heat resistance and the rigidity of the paint are not reduced.
2. The anti-corrosion paint for the earthing tank provided by the invention has the advantages that the silane modified polyether is added, the plasticizer is added, the mechanical property, the adhesive property and the ageing resistance of the paint are improved, and the original waterproof property of the paint is optimized.
3. According to the anticorrosive paint for the earthing tank, the graphene phenolic epoxy paint and the curing agent are mixed and coated, the single-layer thickness of the coating reaches 150-200 mu m, multiple layers are compounded, and a protective layer is formed on the surface of the earthing tank, so that the protective capability is improved.
4. The anticorrosive paint for the earthing tank has excellent barrier property, good chemical stability, mechanical property, heat resistance, wear resistance and performance superior to the traditional anticorrosive paint, and prolongs the service life of the earthing tank.
5. The preparation method of the anticorrosive paint of the earthing tank provided by the invention has the advantages of simple process, environment-friendly process and low cost.
Detailed Description
The present invention is further described below with reference to specific examples, which are not to be construed as limiting the scope of the present invention, but rather as providing those skilled in the art with some simple alternatives or modifications in light of the teachings of the present invention.
Unless otherwise indicated, all starting materials in the examples of the present application were purchased commercially.
Example 1
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing 42 parts of phenolic epoxy resin F-44 parts, 14 parts of acrylic acid, 15 parts of polyether sulfone, 0.02 part of p-hydroxyanisole, 17 parts of trimethylolpropane triacrylate and 17 parts of 2-phenoxyethyl acrylate;
(II) placing the phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 100 ℃, fully stirring for 70min, reducing the temperature to 60 ℃, adding the para-hydroxyanisole, the trimethylolpropane triacrylate and the 2-phenoxyethyl acrylate, fully stirring for 50min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 15 parts of hexamethylcyclotrisiloxane, 45 parts of polyether and 0.8 part of dibutyltin dilaurate, uniformly mixing and stirring, heating to 50 ℃, dropwise adding 0.8 part of methallyl alcohol, and preserving heat for 50min to obtain a substance A;
and step two, weighing 40 parts of heavy calcium and 15 parts of polyether glycol, placing in a reaction kettle, heating to 80 ℃, mixing and stirring for 30min, cooling to 30 ℃, adding the substance A in the step one, mixing and stirring for 10min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, respectively weighing 0.8 portion of phenolic epoxy resin, 0.4 portion of modified phenolic epoxy resin F-44, 0.3 portion of toughening resin VL-1 and 0.3 portion of rosin modified phenolic resin, putting into a ball mill, processing for 5.5 hours at 900rpm to obtain a mixture, weighing 0.2 portion of isomeric monocarboxylic acid glycidyl ester, 0.3 portion of nano fumed silica, 0.04 portion of BYK-111 modified fatty acid ammonium, 0.02 portion of DF9010F defoamer and 0.04 portion of silane coupling agent, putting the mixture into a dispersion tank, dispersing for 20 minutes at 1000rpm, and sieving through a 50-mesh screen to obtain the component A;
(2) According to the weight portions, 1.2 portions of phenolic amide, 0.4 portion of amidoamine, 0.4 portion of C30 type modified alicyclic amine, 0.25 portion of N, N-dimethyl para-methylaniline, 0.3 portion of graphene, 0.06 portion of modified polyether, 0.07 portion of alkoxy ammonium salt BYK-180 and 0.1 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1000rpm, and are sieved by a 50-mesh screen to prepare the component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:35 to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Example 2
The method for modifying the phenolic epoxy resin F-44 comprises the following steps:
precisely weighing 45 parts of phenolic epoxy resin F-44 parts, 16 parts of acrylic acid, 17 parts of polyether sulfone, 0.06 part of p-hydroxyanisole, 20 parts of trimethylolpropane triacrylate and 20 parts of 2-phenoxyethyl acrylate;
(II) placing the phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 130 ℃, fully stirring for 90min, reducing the temperature to 75 ℃, adding the para-hydroxyanisole, the trimethylolpropane triacrylate and the 2-phenoxyethyl acrylate, fully stirring for 60min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
step one, weighing 15 parts of hexamethyl cyclotrisiloxane, 45 parts of polyether, 0.8 part of dibutyltin dilaurate, dioctyltin diacetate, chelated tin, stannous octoate and diorganotin bis (beta-diketone ester), uniformly mixing and stirring, heating to 70 ℃, dropwise adding 1.2 parts of methallyl alcohol and isopentenol, and preserving heat for 70min to obtain a substance A;
And step two, weighing 60 parts of heavy calcium, talcum powder, calcium carbonate, 30 parts of ether dihydric alcohol, polyether triol, 4-dipalmitoyl proline and diisononyl phthalate, placing in a reaction kettle, heating to 160 ℃, mixing and stirring for 50min, cooling to 50 ℃, adding the substance A in the step one, mixing and stirring for 25min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) Respectively weighing 0.8 part of phenolic epoxy resin, 0.4 part of modified phenolic epoxy resin F-44, 0.3 part of toughening resin VL-1 and 0.3 part of rosin modified resin according to parts by weight, putting into a ball mill, and processing for 6.5 hours at 900rpm to obtain a mixture; the obtained mixture, 0.3 part of rosin modified phenolic resin, 0.2 part of heterogeneous monocarboxylic acid glycidyl ester, 0.3 part of nano fumed silica, 0.04 part of BYK-111 modified fatty acid ammonium, 0.02 part of Defom2700 defoamer and 0.04 part of DP-10 adhesion promoter are placed in a dispersion tank, dispersed for 30min at the speed of 1300rpm, and sieved by a 50-mesh screen to obtain a component A;
(2) According to the weight portions, 1.2 portions of phenolic amide, 0.4 portion of amidoamine, 0.4 portion of C30 type modified alicyclic amine, 0.25 portion of accelerator, 0.3 portion of graphene, 0.06 portion of modified polyether, 0.1 portion of alkoxy ammonium salt BYK-180, BYK-1900.07 portion and 0.1 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the speed of 1300rpm, and are sieved by a 50-mesh screen to prepare the component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:40, and obtaining the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy paint obtained in the step (3) with a curing agent according to the weight ratio of 3:1 to obtain the paint required by the coating.
Example 3
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
And step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portion, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is put into a dispersion tank, dispersed for 30 minutes at a rotation speed of 1200rpm and sieved by a 50-mesh screen, so that a component A is prepared;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Example 4
The method for modifying the phenolic epoxy resin F-44 comprises the following steps:
precisely weighing 45 parts of phenolic epoxy resin F-44 parts, 14 parts of acrylic acid, 17 parts of polyether sulfone, 0.06 part of p-hydroxyanisole, 20 parts of trimethylolpropane triacrylate and 17 parts of 2-phenoxyethyl acrylate;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 65 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 15 parts of octamethyl cyclotetrasiloxane, 45 parts of polyether and 0.8 part of stannous octoate, uniformly mixing and stirring, heating to 50 ℃, dropwise adding 0.8 part of isopentenol, and preserving heat for 50-70min to obtain a substance A;
And step two, weighing 55 parts of talcum powder and 18 parts of 4-dipalmitoyl proline, placing in a reaction kettle, heating to 100 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 18min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portion, respectively weighing 0.9 portion of phenolic epoxy resin, 0.5 portion of modified phenolic epoxy resin F-44, 0.3 portion of toughening resin VL-1 and 0.3 portion of rosin modified phenolic resin, putting into a ball mill, processing for 5.5 hours at 1100rpm to obtain a mixture, putting the obtained mixture, 0.2 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.3 portion of nano fumed silica, 0.1 portion of BYK-111 modified fatty acid ammonium, 0.02 portion of AMP95 defoamer and 0.04 portion of silane coupling agent into a dispersion tank, dispersing for 20 minutes at 1100rpm, and sieving by a 50-mesh screen to obtain a component A;
(2) According to the weight portions, 1.1 portions of phenolic amide, 0.3 portions of amidoamine, 0.3 portions of C30 type modified alicyclic amine, 0.2 portions of accelerator, 0.1 portion of graphene, 0.06 portions of modified polyether, 0.04 portions of alkoxy ammonium salt BYK-180 and 0.08 portions of polyamide wax are respectively weighed, the raw materials are placed into a dispersing tank and dispersed for 30 minutes at the rotating speed of 1100rpm, and the B component is prepared through sieving by a 50-mesh screen;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:35 to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy paint obtained in the step (3) with a water-soluble modified epoxy polyamine addition curing agent in a weight ratio of 3:1 to obtain the paint required by the coating.
Example 5
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 17 parts and 2-phenoxyethyl acrylate 17 parts;
(II) placing the phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 110 ℃, fully stirring for 80min, reducing the temperature to 65 ℃, adding the trimethylolpropane triacrylate, fully stirring for 52min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
step one, weighing 20 parts of hexamethylcyclotrisiloxane, 50 parts of polyether and 1.5 parts of chelated tin, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol and isopentenol, and preserving heat for 60min to obtain a substance A;
And step two, weighing 50 parts of heavy calcium and 25 parts of polyether glycol, placing the heavy calcium and the 25 parts of polyether glycol in a reaction kettle, heating to 120 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.5 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.02 portion of AMP95 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is put into a dispersion tank, dispersed for 25 minutes at the rotating speed of 1100rpm and screened by a 50-mesh screen, so that the component A is prepared;
(2) According to the weight portions, 0.9 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of N, N-dimethyl para-methylaniline, 0.18 portion of graphene, 0.05 portion of modified polyether, 0.06 portion of BYK-190 and 0.09 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 20 minutes at the rotating speed of 1000rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:35 to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy paint obtained in the step (3) with a polyamide curing agent in a weight ratio of 3:1 to obtain the paint required by the coating.
Comparative example 1
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
and step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is put into a dispersion tank, dispersed for 30 minutes at a rotation speed of 1200rpm and sieved by a 50-mesh screen, so that a component A is prepared;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint; a step of
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 2
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
and step two, weighing 50 parts of calcium carbonate, 20 parts of polyether glycol and the substance A, placing the mixture in a reaction kettle, heating to 60 ℃, mixing and stirring for 50min, and thus obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is placed into a dispersion tank, dispersed for 30 minutes at a speed of 1200rpm and screened by a 50-mesh screen, so that a component A is prepared;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 3
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyethersulfone 40 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
And step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is put into a dispersion tank, dispersed for 30 minutes at a rotation speed of 1200rpm and screened by a 50-mesh screen, so that a component A is prepared;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint; a step of
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 4
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
And step two, weighing 50 parts of calcium carbonate and 20 parts of diisodecyl phthalate, placing the calcium carbonate and the diisodecyl phthalate in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is put into a dispersion tank, dispersed for 30 minutes at a rotation speed of 1200rpm and screened by a 50-mesh screen, so that a component A is prepared;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 5
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
And step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed, put into a ball mill, treated for 6 hours at 1000rpm, and the obtained mixture, 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter are respectively placed into a dispersion tank, dispersed for 30 minutes at a speed of 1200rpm and screened by a 50-mesh screen, so that a component A is prepared;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are put into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 5:1 to obtain the coating required by the coating.
Comparative example 6
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
and step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(2) And (3) uniformly mixing the component B obtained in the step (1) with an aromatic amine curing agent according to the weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 7
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portion, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed and put into a ball mill, 1000rpm is used for processing for 6 hours to obtain a mixture, the obtained mixture is mixed with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, and the mixture is put into a dispersion tank, dispersed for 30 minutes at a rotation speed of 1200rpm and sieved by a 50-mesh screen, so that a component A is prepared;
(2) And (3) uniformly mixing the component A obtained in the step (1) with an aromatic amine curing agent according to the weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 8
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
and step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) Weighing 0.4 part of toughening resin VL-1 and 0.4 part of rosin modified phenolic resin according to parts by weight, respectively placing into a ball mill, processing for 6 hours at 1000rpm to obtain a mixture, placing the obtained mixture, 0.4 part of heterogeneous monocarboxylic acid glycidyl ester, 0.6 part of nano fumed silica, 0.08 part of BYK-111 modified fatty acid ammonium, 0.04 part of BYK-A530 defoamer and 0.06 part of DP-10 adhesion promoter into a dispersion tank, dispersing for 30 minutes at 1200rpm, and sieving by a 50-mesh screen to obtain a component A;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.18 portion of graphene, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
Comparative example 9
A method of modifying phenolic epoxy resin F-44 comprising the steps of:
precisely weighing phenolic epoxy resin F-44 parts, acrylic acid 15 parts, polyether sulfone 16 parts, p-hydroxyanisole 0.04 parts, trimethylolpropane triacrylate 18 parts and 2-phenoxyethyl acrylate 18 parts;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 120 ℃, fully stirring for 80min, reducing the temperature to 70 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 55min, and cooling and grinding the obtained mixture to obtain the modified phenolic epoxy resin F-44.
The modification method of the modified polyether comprises the following steps:
weighing 22 parts of hexamethylcyclotrisiloxane, 52 parts of polyether and 1.2 parts of dibutyltin dilaurate, uniformly mixing and stirring, heating to 60 ℃, dropwise adding 1.0 part of methallyl alcohol, and preserving heat for 60min to obtain a substance A;
and step two, weighing 50 parts of calcium carbonate and 20 parts of polyether glycol, placing the calcium carbonate and the 20 parts of polyether glycol in a reaction kettle, heating to 140 ℃, mixing and stirring for 40min, cooling to 40 ℃, adding the substance A in the step one, mixing and stirring for 15min, and obtaining the modified polyether.
The preparation method of the anticorrosive paint of the earthing tank comprises the following steps:
(1) According to the weight portions, 1.0 portion of phenolic epoxy resin, 0.6 portion of modified phenolic epoxy resin F-44, 0.4 portion of toughening resin VL-1 and 0.4 portion of rosin modified phenolic resin are respectively weighed, put into a ball mill, treated for 6 hours at 1000rpm to obtain a mixture, and the obtained mixture is placed into a dispersion tank with 0.4 portion of heterogeneous monocarboxylic acid glycidyl ester, 0.6 portion of nano fumed silica, 0.08 portion of BYK-111 modified fatty acid ammonium, 0.04 portion of BYK-A530 defoamer and 0.06 portion of DP-10 adhesion promoter, dispersed for 30 minutes at a rotation speed of 1200rpm, screened by a 50-mesh screen, thus obtaining a component A;
(2) According to the weight portions, 1 portion of phenolic amide, 0.3 portion of amidoamine, 0.3 portion of C30 type modified alicyclic amine, 0.2 portion of cobalt salt accelerator, 0.04 portion of modified polyether, 0.05 portion of BYK-190 and 0.08 portion of polyamide wax are respectively weighed, and the raw materials are put into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1200rpm, and are sieved by a 50-mesh screen to prepare a component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100:30 weight ratio to obtain the phenolic epoxy paint;
(4) And (3) uniformly mixing the phenolic epoxy coating obtained in the step (3) with an aromatic amine curing agent in a weight ratio of 3:1 to obtain the coating required by the coating.
The coatings prepared in examples 1 to 5 and comparative examples 1 to 9 were applied to an earthing tank and subjected to performance test, and the test results are shown in table 1.
TABLE 1
As can be seen from Table 1, the graphene filler obtained by the preparation method is applied to a soil-covering storage tank, graphene phenolic epoxy paint and a curing agent are mixed and coated, the single-layer thickness of the coating reaches 150-200 mu m, and a protective layer is formed on the surface of the soil-covering tank by multi-layer compounding, so that the protective capability is improved, the corrosion resistance performance is excellent after the anti-corrosion coating is formed, the adhesive force is good, the chemical stability and the mechanical performance of the anti-corrosion coating are improved, the anti-corrosion requirement of the soil-covering storage tank can be met, the service life of the soil-covering tank is prolonged, and the anti-corrosion coating obtained by the raw material proportion of the embodiment 3 has the best performance.
Comparative example 1 differs from example 3 in that the phenolic epoxy resin F-44 was not modified, reducing the chemical resistance of the coating.
Comparative example 2 is different from example 3 in that in the modification step of the modified phenolic epoxy resin F-44, the part of polyethersulfone is increased to 40 parts, and when the polyethersulfone content is excessively high, the mechanical properties of the coating layer are lowered.
Comparative example 3 is different from example 3 in that diisodecyl phthalate is used as the plasticizer in the modification step of the modified polyether, resulting in a decrease in mechanical properties and chemical stability of the coating.
Comparative example 4 differs from example 3 in that in the second step of modifying the polyether, the desired raw materials are directly mixed and the mixing temperature is lowered, and the mechanical properties of the resulting modified polyether are lowered.
Comparative example 5 is different from example 3 in that the weight ratio of the graphene phenolic epoxy coating to the curing agent is increased from 3:1 to 5:1, the viscosity of the obtained anti-corrosion coating is too high, the curing speed is slow, and the layer thickness is uneven.
Comparative example 6 is different from example 3 in that the resulting anticorrosive paint has no a component added, resulting in a decrease in corrosion resistance, chemical resistance of the coating layer to which the paint is applied.
Comparative example 7 is different from example 3 in that the resulting anticorrosive paint was not added with the B component, resulting in a decrease in mechanical properties and poor adhesion of the coating applied by the paint.
Comparative example 8 is different from example 3 in that no novolac epoxy resin and modified novolac epoxy resin F-44 are added to the a-component, resulting in a decrease in chemical resistance, corrosion resistance, heat resistance and abrasion resistance of the coating layer to which the paint is applied.
Comparative example 9 is different from example 3 in that no graphene is added to the B component, resulting in a decrease in the barrier property, chemical stability, and mechanical properties of the coating.
The foregoing is merely exemplary of the present invention and is not intended to limit the present invention. Various modifications and variations of the present invention will be apparent to those skilled in the art. Any modification, equivalent replacement, improvement, etc. which come within the spirit and principles of the invention are to be included in the scope of the claims of the present invention.
Claims (10)
1. The anti-corrosion paint for the earthing tank is characterized by comprising a bottom layer, a middle layer and an outer layer, wherein the bottom layer, the middle layer and the outer layer are formed by mixing graphene phenolic epoxy paint and a curing agent, and the weight ratio of the graphene phenolic epoxy paint to the curing agent is (2.5-3.5): 1;
the graphene phenolic epoxy paint comprises a component A and a component B in a ratio of 100: (30-40) by weight ratio;
the component A comprises the following components in parts by weight: 0.8-1.2 parts of phenolic epoxy resin, 0.4-0.7 part of modified phenolic epoxy resin F-44, 0.3-0.5 part of toughening resin VL-1, 0.3-0.6 part of rosin modified phenolic resin, 0.2-0.5 part of heterogeneous monocarboxylic acid glycidyl ester, 0.3-0.8 part of nano fumed silica, 0.04-0.1 part of BYK-111 modified fatty acid ammonium, 0.02-0.06 part of defoamer and 0.04-0.08 part of adhesion promoter;
The component B comprises the following components in parts by weight: 0.8-1.2 parts of phenolic amide, 0.2-0.4 part of amidoamine, 0.2-0.4 part of C30 type modified alicyclic amine, 0.1-0.25 part of accelerator, 0.01-0.3 part of graphene, 0.02-0.06 part of modified polyether, 0.03-0.07 part of wetting dispersant and 0.05-0.1 part of polyamide wax.
2. The anticorrosive paint for earthen covered cans of claim 1, wherein the method of modifying the phenolic epoxy resin F-44 comprises the steps of:
precisely weighing 42-45 parts of phenolic epoxy resin F-44, 14-16 parts of acrylic acid, 15-17 parts of polyethersulfone, 0.02-0.06 part of p-hydroxyanisole, 17-20 parts of trimethylolpropane triacrylate and 17-20 parts of 2-phenoxyethyl acrylate;
(II) placing phenolic epoxy resin F-44, acrylic acid and polyether sulfone into a stirrer, heating to 100-130 ℃, fully stirring for 70-90min, reducing the temperature to 60-75 ℃, adding para-hydroxyanisole, trimethylolpropane triacrylate and 2-phenoxyethyl acrylate, fully stirring for 50-60min, cooling the obtained mixture, and grinding to obtain the modified phenolic epoxy resin F-44.
3. The anticorrosive paint for earthen covered tanks of claim 1 wherein the modification method of the modified polyether comprises the steps of:
Weighing 15-30 parts of cyclic siloxane, 45-60 parts of polyether and 0.8-2 parts of catalyst, uniformly mixing and stirring, heating to 50-70 ℃, dropwise adding 0.8-1.2 parts of unsaturated alcohol, and preserving heat for 50-70min to obtain a substance A;
and step two, weighing 40-60 parts of reinforcing material and 15-30 parts of plasticizer, placing in a reaction kettle, heating to 80-160 ℃, mixing and stirring for 30-50min, cooling to 30-50 ℃, adding the substance A in the step one, mixing and stirring for 10-25min, and obtaining the modified polyether.
4. A soil cover tank anticorrosive paint according to claim 3, wherein the unsaturated alcohol is one or both of methallyl alcohol and isopentenyl alcohol;
the cyclic siloxane is any one or two of hexamethyl cyclotrisiloxane and octamethyl cyclotetrasiloxane;
the catalyst is one or more of dibutyl tin dilaurate, dioctyl tin diacetate, chelate tin, stannous octoate and diorganotin bis (beta-diketone ester);
the reinforcing material is one or more of heavy calcium, talcum powder and calcium carbonate;
the plasticizer is any one or more of polyether glycol, polyether triol, 4-dipalmitoyl proline and diisononyl phthalate.
5. The anticorrosive paint for a soil covering tank according to claim 1, wherein the curing agent is any one or more of a water-soluble modified epoxy polyamine addition curing agent, an aromatic amine curing agent and a polyamide curing agent.
6. The anticorrosive paint for the earthing tank according to claim 1, wherein the defoamer is any one or more of DF9010F defoamer, defom2700 defoamer, AMP95 defoamer and BYK-A530 defoamer.
7. The anticorrosive paint for earthen tank of claim 1 wherein the adhesion promoter is a silane coupling agent or DP-10 adhesion promoter.
8. The anticorrosive paint for earthen covered tanks of claim 1 wherein the accelerator is any one or more of 2,4, 6-tris (dimethylaminomethyl) phenol, N-dimethylaniline, N-dimethyl-p-methylaniline, cobalt salt accelerator.
9. The anticorrosive paint for earthen covered tanks of claim 1 wherein the wetting dispersant is one or both of the alkoxy ammonium salts BYK-180, BYK-190.
10. A method of preparing an anticorrosive paint for a covered tank as claimed in any one of claims 1 to 9, comprising the steps of:
(1) Weighing 0.8-1.2 parts of phenolic epoxy resin, 0.4-0.7 part of modified phenolic epoxy resin F-44, 0.3-0.5 part of toughening resin VL-1 and 0.3-0.6 part of rosin modified phenolic resin according to parts by weight, and placing the materials into a ball mill for processing at 900-1100rpm for 5.5-6.5 hours to obtain a mixture; weighing 0.2-0.5 part of heterogeneous monocarboxylic acid glycidyl ester, 0.3-0.8 part of nano fumed silica, 0.04-0.1 part of BYK-111 modified fatty acid ammonium, 0.02-0.06 part of defoamer and 0.04-0.08 part of adhesion promoter, putting the mixture and the mixture into a dispersing tank, dispersing for 20-30min at the rotating speed of 1000-1300rpm, and sieving by a 50-mesh screen to obtain the component A;
(2) According to the weight portion, 0.8 to 1.2 portions of phenolic amide, 0.2 to 0.4 portion of amidoamine, 0.2 to 0.4 portion of C30 type modified alicyclic amine, 0.1 to 0.25 portion of accelerator, 0.01 to 0.3 portion of graphene, 0.02 to 0.06 portion of modified polyether, 0.03 to 0.07 portion of wetting dispersant and 0.05 to 0.1 portion of polyamide wax are respectively weighed, and the raw materials are placed into a dispersing tank to be dispersed for 30 minutes at the rotating speed of 1000 to 1300rpm, and are sieved by a 50-mesh screen to prepare the component B;
(3) Taking the component A and the component B prepared in the step (1) and the step (2) respectively according to 100: mixing (30-40) by weight ratio to obtain the graphene phenolic epoxy paint;
(4) And (3) uniformly mixing the graphene phenolic epoxy paint obtained in the step (3) with a curing agent in a weight ratio of 3:1 to obtain the paint required by the coating.
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